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Gastrointestinal ulcer

A gastrointestinal ulcer is a wound in the mucous membrane of the stomach or intestines that can be caused by various factors. This condition can cause pain, bleeding, loss of appetite and other symptoms in dogs. In this article, you'll learn about the causes, signs and treatment options for gastrointestinal ulcers in dogs.

Causes of gastrointestinal ulcers in dogs

There are many possible causes of gastrointestinal ulcers in dogs, but some of the most common are:

  • The use of medications that can irritate or damage the stomach lining, such as non-steroidal anti-inflammatory drugs (NSAIDs), corticosteroids or aspirin.
  • An infection with the bacterium Helicobacter pylori, which attacks the stomach lining and causes inflammation.
  • A chronic illness that increases acidity in the stomach, such as kidney failure, liver disease or Cushing's syndrome.
  • Trauma or injury to the gastrointestinal tract, such as foreign bodies, tumors or surgery.
  • Stress, which can lead to increased secretion of stomach acid.

Signs of gastrointestinal ulcers in dogs

The symptoms of a gastrointestinal ulcer in dogs can vary depending on the severity and location of the ulcer. Some of the most common signs are:

Treatment options for gastrointestinal ulcers in dogs

Treatment for a gastrointestinal ulcer in dogs depends on the cause, severity and condition of the dog. Some of the possible treatment options include:

  • Discontinuing or adjusting the medications that may have caused or worsened the ulcer.
  • The administration of antibiotics to fight an infection with Helicobacter pylori.
  • The administration of medications that reduce or neutralize stomach acid, such as proton pump inhibitors (PPIs), histamine receptor blockers (H2 blockers) or antacids.
  • The administration of drugs that promote the healing of the mucous membrane, such as sucralfate or misoprostol.
  • The administration of blood transfusions, fluid therapy or other supportive measures in the event of severe bleeding or shock.
  • Surgical removal of foreign bodies, tumors or other obstructions in the gastrointestinal tract.
  • Adjustment of the diet in order to protect and relieve the gastrointestinal tract. This may include low-fat, easily digestible and frequent feeding.

A gastrointestinal ulcer is a serious condition that can lead to serious complications in dogs. If you notice one or more of the above symptoms in your dog, you should take him to the vet as soon as possible. With early diagnosis and proper treatment, your dog can recover from a gastrointestinal ulcer and lead a healthy life.


The authors assume that a veterinarian should be consulted if an animal is ill and that medication should only be taken after consultation with a doctor or pharmacist. Only an individual examination can lead to a diagnosis and treatment decision.

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